Turn Signal HELP ! 🤯

[jondancer]

Ok I have spent so much time on these darn turn signals and gotten no where.

So 1971 2wd , hazards all work except for the left front . But I have no turn signals . Blinkers do not work , but the left arrow lights up on the dash. Before my turn signals used to blink and it would make the radio short out with the pulse of the blinker but now nothing happens .
So far I have replaced:
Ignition harness , it was melted at a few terminals, no change ...
Turn signal switch , made my horn work but no blinkers .....
Radio , brand new stereo , stereo no longer pulses with blinkers but no blinker
Pulse at all....
Multiple ground straps installed new .........
I don’t know what to do
PLEASE ANY SUGGESTIONS
Thank you 🙏

[HIGHWAY BY THE SEA]

Since your left light does not illuminate and your left dash indicator is lit, check the bulb.

[jondancer]

Replaced the bulb , nothing

[RustyPile]

Using a wiring diagram for color code and a 12V test light or digital volt meter, start at the turn signal harness plug as you check voltage.. Work your way through the harness plugs all the way to the bulbs.. Old vehicle electrical systems are eat up with corrosion, bad and/or loose connections and bad grounds.. Quit throwing parts at the problem and conduct a systematic search..

[jondancer]

Ok from the back of my fuse panel I have a plug coming out , it has an orange wire coming in and a white wire and an orange wire going out . Maybe this was for interior under dash lights ? With this not hooked up would it leave something open or ungrounded?
Thanks

[RustyPile]

Originally Posted by jondancer

Ok from the back of my fuse panel I have a plug coming out , it has an orange wire coming in and a white wire and an orange wire going out . Maybe this was for interior under dash lights ? With this not hooked up would it leave something open or ungrounded?
Thanks

That orange wire is probably the feed for, among other items, the brake light switch and dome/courtesy lights.. That's all "spelled out" in the wiring diagram.. Wiring diagrams are available right here on this site.

Spoon fed information doesn't stick very well. Any help I offer requires the recipient to do some searching also. I know I keep harping on this, but if you don't have a wiring diagram, you're pissing in the wind..